268598409 has 8 divisors (see below), whose sum is σ = 360328992. Its totient is φ = 177966720.

The previous prime is 268598387. The next prime is 268598471. The reversal of 268598409 is 904895862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268598409 - 2²⁰ = 267549833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268598489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274152 + ... + 275129.

It is an arithmetic number, because the mean of its divisors is an integer number (45041124).

Almost surely, 2^268598409 is an apocalyptic number.

It is an amenable number.

268598409 is a deficient number, since it is larger than the sum of its proper divisors (91730583).

268598409 is a wasteful number, since it uses less digits than its factorization.

268598409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549447.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 268598409 is about 16388.9721764362. The cubic root of 268598409 is about 645.2100823991.

The spelling of 268598409 in words is "two hundred sixty-eight million, five hundred ninety-eight thousand, four hundred nine".